Is it part of the Sunnah not to change your sitting position after the taslim until you recite the dhikr prescribed after the prayer?

Question:
Is it part of the Sunnah not to change your sitting position after the taslim of the prayer until you say, "I seek Allah's forgiveness" three times, then, "O Allah, You are Peace, and from You comes peace," and so on?

Answer:
Yes, it is reported that he did so while still in his second sitting. If he recited the dhikr while in his second sitting, it indicates that he did not change his position until he performed the reported dhikr. Yes, but if he needs to move his leg in pain and cannot bear it, there is no harm. However, if he is able to, it is better that he not break his sitting position until he recites the dhikr. Yes.